IMA mineral species

Hureaulite

🪶 Soft, Scratches Easily

Mn²⁺₅(PO₃OH)₂(PO₄)₂·4H₂O

Hydrous phosphate mineral.

RedOrangeYellowBrownGrayWhite & Clear

Hureaulite specimen
Hureaulite-Reddingite-169942.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness3.5
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💅🪙🍶🔪💎

A copper coin scratches it.

Chemical formulaMn²⁺₅(PO₃OH)₂(PO₄)₂·4H₂O
ElementsMn, P, O, H
Crystal system—
Mohs hardness3.5
Density—
Streak—
Color—
IMA symbolHur
Nickel–Strunz class8.CB.10

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 3.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.

🌍 Where it's found

Type locality (where it was first described): Les Hureaux, France